Index reckoner calendar



Aug. 28, i923. EAOZl J. H. KULow I NDEX RECKONER CALENDAR f/Jmlo 1%2 3 m 7:2 W y F S f7' Jfaremb er' ecembef. v ATTORNEYS Patented Aug. 28, 1923.

A'narr et Mezl INDEX RECKONR CLEND'AR.

Application filed April 2li, 1922. Serial 1\To. 556,300.A

To @ZZ whom it may concern.'

Be it knownthat I, JOHN H. KULOW, a citizenof the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Index Reckoner Calendars, of which the following is aspeciiication.

Primarilyniy invention has for its purpose to provide an index reckoner calendar designed for useful andornamental. application, either as a calendar vper se, or for attachment to other articles of manufacture such, for example, as a vbase or supporting member' that is particularly adapted and designed tor advertising purposes or works of art. i

More specifically my invention comprises a new and novel construction of index reckoner calendar in which the calendar faces are designed to present the usual month and day indicia and indexed to designate the number of days leading from any selected date on the calendar in reverse direction, that is, commencing with l on January 1st of the year and ending with 365 December 31st of that year or reversely beginning with l December 31st and to vthe end 365 on Januaryy lst of such year'or in other words, each calendar sheet is designed for designating` at aglance, when turning the sheet to select any particular day of thc-year the number of ,the days of the year that have passed from January'lstto such date and how many `days of the year remain between such selected day and the end December 31st of the said year, the

arrangement of the indicia on the face ofV each calendar sheet, providing, as it were, a. ready reckoner in determiningthe intervening 4days between any given period reading either forwardly from the beginning or reversely from the endof the year.

A still further object of my invention is to provide, in a calendar of the generalfchar-v acter stated, an improved construction of date pad, that is,a series of monthly calendar sheets, so arranged that the indexing of the pad: sheets is materially simplified. is capable of beingY more quickly and accurately read, than by the usual edge indexing tabs, and byl which provision is made on the suc'- cessively readable month sheets (reading.

from February down), `owing "to progressively increasing blank spaceslett at the top l arrangement' gradual increasing blank areasleft at `the` tops of the aforesaid progressively arranged calendar sheets, as indicated 1n Figure 5 of the drawing.4

n'its complete form,'my invention com prehends the provision of a.' pad of calendar sheets and a suitable base for'pad, preferably Girard-board, that may be Ydesigned,either vto :representa work of art, or to be useful foradvertising purposes .and whichl has special provision for holding theca'leiid'ar sheets to their turned back position, as the month for which they are particularly pro` vided ends, to thereby keep the pad'v sheets for the complete year togetherso that, when it be desiredtocalculate time of days from a certain pastfdate t'o another period, in either the forwardorreverse direction from the selected date','the pad'sheets can .be convenientl'ybrought into position for, Ygathering the data. desired and as. readily returnedto the turned, back positionl to keep theocurrent month ycalendar sheet in view.

'VVitl'i the above vin' View, and'other minor Aobjects thatr will be hereinafter' incnlentally mentioned,V my invention is `a `combinedl calendar and advertising mediafof 'the 'general character stated 'Y that embodies thepeculiar `features and" znovel arrangement of parts, allfof which will.V be vherein-` after fully explained, speciiically Ypointed out inthe appended claims andi illustrated ini/the accompanyingdrawings, in which:

' `Figurel is affront View of the'preferable arrangement of my combined index reckon-- er and advertising calendar.

Figure 2 is a similar view which illusi trates all the month calendar'sheets,down

to the March sheet, bent back, one corner of the said March sheet being bent back ,to illustrate a portion of the April calendar sheet below' it at slight' modification of the of "the lettering `being also shown.

Figure 3 is a verticaltransverse section of the complete calendar form shown: in Figure 2 and' taken'substantially on the line 3 3 of Figure 2. l 4 1 1 Figure l is a perspective view of the' card board base, with which iny calendarpads.

are combined in the complete application of my improved index reckoner calendar, the upper and lower sections of the base and the spring clip device being shown separated.

Figure 5 is a Vface View of a modified arrangement of a calendar pad, in'which is embodied my invention.

In the practical application of my invention, when the same is applied as shown in the accompanying drawings, the calendar pad or sheets are mounted on a base of any suitable material, preferably, on account `of economy of manufacture and lightness, of stiff card board.

I make the base of three members, a lower cardboard section l and an upper card board section 2, which sections lare secured together by a resilient or spring device 3, the construction'and the purpose of which will be presently explained.

The two card board sections are fixedly Connected in the completed structure, and the lower section 1, in the upper edge and centrally thereof, has a notchv 10 which isL of suflicient width in the manufacture of the base for at once placing thespring Yin operative position.

The lower and upper base sections l and 2, when the calendar parts are ,finally assembled, are glued along the line 5, as indicated in the drawings, and the Vrigid joining of the said sections causes the upper section fto function with the spring device 3 in receiving or releasing the bent back matured month sheets of the date pad, as will hereinafter be further explained.

The spring device 3 is made of suitable metal and it has two bends 30-31 and it is of' suitable length and width for the `purpose for which is` provided. The upper bend 30 of the member 3 forms a hook for fitting the notch l0 in the upper edge of the lower base section l and for flexibly clamping the upper section 2 over the upper part of the lower section l, as is best shown in Figure 3. The other bend 31 of the device 3 terminates in an upturned hook 32 and the said bend 3l is of sufficient length so that the hook 32 willreceive the lower edge of the upper section y2, and'in the finished product the said hook 32 is clamped over the said edge to aid in firmly holding the vlong member of the spring device 3 and the top section toV flex outwardlv together A,when the passed or matured month ysheets are bent back and inserted in place between the contacting portions of the upper and lower sections l and 2 and vfor being engaged by the tension clamp 3l, as shown.

y rThe date pad, that is, the pack of sheets on which lthe consecutive monthly calendars are delineated are stapled along their upper edge in the usual way and the said pack or pads of sheets are attached along their upper back edge, by gluing or stapling to the lower base section l, as indicated by 6 on Figure 3.

In my arrangement of calendar, the month sheets, when matured, that is, after the months for which they are especially designed 'have passed, are not torn ofi' as is usual, but are adapted for being bent back to preserve them for future reference, by tucking them under the 'spring portions 3l and between the opposing'faces of the upper and lower base sections l and 2, as is clearly shown in Figures 2 and 3 of the drawings.

Each monthly calendar sheet, designated 7, is divided into squares andjeach sheet has the month, week and year designations arranged thereon in the usual manner. i

Each date square, inV my arrangement of monthly calendar sheets, has two small groups of supplemental figures, one group 70, in practice, being printed in red and the other of the said groups 7l, printed in black, so that the different groups may be readily distinguished when reading the calendar.

The black figures 7l progressively increase beginning with i'on January 1st and ending with 365 on December 31st, while the red figures progressively increase in reverse direction, beginning with l December 31st of the year to 365, ending with January lst of the same year and to further facilitate the reading of the supplementalr calendar numbers a division line'72 is 'run between the said supplemental figures, whichfigures together with the regular month dates, in the preferred arrangement, are placed in vertical alignment, as-is clearly shown in Figure l of the drawings.

Cooperative with thedate pad, that is,"the pack of monthly sheets and theV base formae ltion with which the said sheets are used,Y as

hereinbefore mentioned, is what is hereinafter termed an instruction leaflet 8. The leaflet 8 is gluedalong the back of its upper edge to the top or head portion ofthe pack lor pad of monthly-v calendar sheets. rEhe leafiet 8, before mentioned, is intended as an attached or fixed part of the complete calendar and the said leaflet is tucked under the top'section 2 land the spring device 3 when thecalendar leaves the vhands of the printer or other place where the said `calendars are made up.

Normally the leaflet 8 is bent back, that is, tucked under. the upper basesection 2 to expose the rear face thereof upon which certain instructionsl are printed which vdesignate that the said leaflet is not to be torn away from the calendar pad, and that none ofthe parts of the pac-k or, pad of monthly calendar sheets are to be torn a.waj,f,but that all of the said sheets, which constitute the 'pad or pack, Vare to be preserved for future reference, it being understood that as the monthly sheets mature they are individually tucked back over the leaflet and over each other, and held to such conditions by slip- Y3, as before stated.

The leaflet 8 also has a notice thereonv indicating that the other side of the leaflet has valuable instructions so that should one at any time desire to utilize the calendar as an index reckoner by pulling the leaflet 8 down to expose its front face, explanation of the manner in which the calendar determines the dates when time in dates is given, or when exact time in days, between two dates, is desired.

It will be noticed by referring to Figure l of the drawings, the calender gives the exact time in days between* two given dates, for example, should it be desired to learn the number of days between August 8th to October 12th of the same year, the solution is as follows: August 8th is numbered in red 146 and -Octoberlth is numbered in red 8l. By subtracting the October number from the August figure, the result is 65- the answer.

This methodY of acquiring the desired data includes the last day' mentioned but not the first. lf both days mentioned, the first and the last, are to taken, then subtract 8O from 146 which leaves 66, as the correct answer.

How to determine dates when time in days is given is explained as follows:

Prob-lem.

Work commenced on November 14th was promised in days. At what date should it be completed? Solution.

Days promised 95 November 14th red number is 4:8

By subtraction .47

Look forward for the black number i7 found under February 16th, which is the date sought. Y

ber 263 found under -September 20th, which is the date sought.

From the foregoing description taken in connection with thel drawings, it will be seen the pad sheets are so indexed that by reason thereof any month desired forv reference is at the fingers ends, which avoids annoying and unnecessary paging, incident in Athe usual form of calendar pads, and consequent resultant in loss of time.

In my arrangement of monthly calemilaisheets, the designating figures `are so coinbined that a glance at any given datewill disclose by the black7 figures, the number of days that have elapsed at the end of each date while the red figures indicate at the beginning of each date the days remaining for the year. v i

For instance, turning at random; to August 8th, thefred figures show that at the beginning of such date, there are 146 days of the year remaining, while, onj'the other hand, the black figures indicate Vthat a-t the end of the said date, AugustSth, 221i) of the days of the year have elapsed.

The leaflet 8, being an attachedpart of the i calendar, asbefore stated, andl whichgis Y tucked under the calendar base when', the calendar is placed in use, the compilation of the figures on the various month .calendar sheets serve asaready reckoner in determining days between given periods,l therefore adapting itself as especiallyvaluablerfer by banks and insurance and business Yme general where and whenever such lcomputations, as before outlined, are required.

Figures l to 3 illustrate all of the month sheets of exact size "and with their bottom edges in registering alignment and with the month indicating tabs arranged along one 1 ein edge, as is usual ink calendar pads now in general use.

-In Figure 5 is illustrated a modified and preferable construction of the month sheets or date pads which differs from the other form of date pad in that each sheet begin-V ning with February is suiiiciently'longer.

than January to provide a bottomtab on which the February index .is` printed,

March Vis likewiseV longer thanV Feb-y ruary and April issimilarly lengthened relatively to March and so onA down to Deceinber, it being understood4 that the monthly indiciav on eachsheet is printed or otherwise delineated on the said vsheet and in consecutive lower relation, that is, the February7 calendar is relatively lower on its sheet than is January and March is lower than KFebruary and so on down to December The consecutive loweringof the said calendar faces 'providing blank spaces at the top of each sheet, February having the minimum amount of blank space at the top and December the maximum amount, it being obvious thatthe increasingY blank area of the monthly sheets, thefDecember space (owing to itsr size) will be relatively of the greatest value and the space on the February sheet of the minimum value fo advertising purposes. Y 'K CGI f an.

ln the latter and preferredL form of calendar pad, the monthly indexing is don-e downwardly by l slightly lengthening the sheet orF each succeeding month suthciently to allow for the inscription ogt the naine ot' the various months,as above mentioned.

What I claim is:

l. In a calendar ofthe character described, a base comprising an supperl andL lower section, the lowerend or" the upper section lapping the upper end or the lower section, the said upper end or the lower section having a downwardly extending notch, a 'flat spring metal clamp having a turned back hoolz portion Vthat lits within the notch and clamps over the upper end of the lower base section and wl ich has turned up flange at its lower end that clamps the lower edge or the upper base section, a Vdite pad consisting ot calendar sheets having the usual .inonth and days or theV month indicia thereon, the said pad of sheets Vhaving their upper ends attached to each other and to the base with their upper edge spaced troni the lower edge or the overlapping top base section whereby provision is inade l'or folding baclr the rnas` tured month sheets and tuclring thein befyveen the overlapped portions of the upper and lower base sections and under the spring metal clamp. f

2. ln a calendar or" the character described, a base comprising an upper anda lower section, the low end of the u1 per section lappino the upper endL oit' the lower section, the said upper end of the lower section having a downwardly extending` notch, a fiatspring metal clamp having a turned back hook portion that lits within the notch and clamps over the upper endo the lower base section and which has a turned up 'lange at uits lower end that clamps the lower edge ol the upper basesection, date pad consisting ot calendar sheets iaving the usual nionth and days or the inonth indicia thereon., the'said pad of sheets having their upper ends attached to each other and to the base with their upper edge spaced Atroni the lower ec ge of the overlapping top base section whereby provision is made tor folding back the inatured inonth sheets and tuclring then'i between the overlapped portions ot the upper and lower base sections and under the spring inetal clamps, and a supplemental or direction sheet that is attached to the top edge of the pad of inonth sheets and is adapted for being tucked under the lapped portions of the upper and lower base sections, the said supplemental sheethaving explanatory indicia on itsV opposite side.

' JOHN H. KULOl/V. 

